MEDIAN FLOW RATE · 1 DAY
720cfs 39.1% vs avg
Optimal band: 484–654 cfs
PERIOD HIGH
735cfs
PERIOD LOW
535cfs
RUNNABLE
71%
last 1 day in band
Gauge Height
8.45ft
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Your History · GRAND RIVER AT IONIA, MI
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Station Location
42.9720, -85.0692Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-09-01 14:45 UTC
Site #04116000·USGS
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